Constructor Detail

• NameChecker

  public NameChecker​()

Method Detail

• isQName

  public final boolean isQName​(java.lang.String name)

  Validate whether a given string constitutes a valid QName, as defined in XML Namespaces. Note that this does not test whether the prefix is actually declared.

  Parameters:

  name - the name to be tested

  Returns:

  true if the name is a lexically-valid QName

• getPrefix

  public static java.lang.String getPrefix​(java.lang.String qname)

  Extract the prefix from a QName. Note, the QName is assumed to be valid.

  Parameters:

  qname - The lexical QName whose prefix is required

  Returns:

  the prefix, that is the part before the colon. Returns an empty string if there is no prefix

• getQNameParts

  public final java.lang.String[] getQNameParts​(java.lang.CharSequence qname)
                                         throws QNameException

  Validate a QName, and return the prefix and local name. The local name is checked to ensure it is a valid NCName. The prefix is not checked, on the theory that the caller will look up the prefix to find a URI, and if the prefix is invalid, then no URI will be found.

  Parameters:

  qname - the lexical QName whose parts are required. Note that leading and trailing whitespace is not permitted

  Returns:

  an array of two strings, the prefix and the local name. The first item is a zero-length string if there is no prefix.

  Throws:

  QNameException - if not a valid QName.

• checkQNameParts

  public final java.lang.String[] checkQNameParts​(java.lang.CharSequence qname)
                                           throws XPathException

  Validate a QName, and return the prefix and local name. Both parts are checked to ensure they are valid NCNames.

  Used from compiled code

  Parameters:

  qname - the lexical QName whose parts are required. Note that leading and trailing whitespace is not permitted

  Returns:

  an array of two strings, the prefix and the local name. The first item is a zero-length string if there is no prefix.

  Throws:

  XPathException - if not a valid QName.

• isValidNCName

  public final boolean isValidNCName​(java.lang.CharSequence ncName)

  Validate whether a given string constitutes a valid NCName, as defined in XML Namespaces.

  Parameters:

  ncName - the name to be tested

  Returns:

  true if the name is a lexically-valid QName

• isValidNmtoken

  public final boolean isValidNmtoken​(java.lang.CharSequence nmtoken)

  Check to see if a string is a valid Nmtoken according to [7] in the XML 1.0 Recommendation

  Parameters:

  nmtoken - string to check

  Returns:

  true if nmtoken is a valid Nmtoken

• isValidChar

  public abstract boolean isValidChar​(int ch)

  Test whether a character is a valid XML character

  Parameters:

  ch - the character to be tested

  Returns:

  true if this is a valid character in the selected version of XML

• isNCNameChar

  public abstract boolean isNCNameChar​(int ch)

  Test whether a character can appear in an NCName

  Parameters:

  ch - the character to be tested

  Returns:

  true if this is a valid character in an NCName the selected version of XML

• isNCNameStartChar

  public abstract boolean isNCNameStartChar​(int ch)

  Test whether a character can appear at the start of an NCName

  Parameters:

  ch - the character to be tested

  Returns:

  true if this is a valid character at the start of an NCName the selected version of XML

• getXMLVersion

  public abstract java.lang.String getXMLVersion​()

  Return the XML version supported by this NameChecker

  Returns:

  "1.0" or "1.1" as a string